120554055555 has 64 divisors (see below), whose sum is σ = 196241246208. Its totient is φ = 63188582400.

The previous prime is 120554055553. The next prime is 120554055563. The reversal of 120554055555 is 555550455021.

It is not a de Polignac number, because 120554055555 - 2¹ = 120554055553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120554055553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 214127704 + ... + 214128266.

It is an arithmetic number, because the mean of its divisors is an integer number (3066269472).

Almost surely, 2^120554055555 is an apocalyptic number.

120554055555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120554055555 is a deficient number, since it is larger than the sum of its proper divisors (75687190653).

120554055555 is a wasteful number, since it uses less digits than its factorization.

120554055555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436.

The product of its (nonzero) digits is 625000, while the sum is 42.

The spelling of 120554055555 in words is "one hundred twenty billion, five hundred fifty-four million, fifty-five thousand, five hundred fifty-five".